cur.rs

extern crate pancurses;

use pancurses::{endwin, getmouse, initscr, mousemask, noecho, Input, ALL_MOUSE_EVENTS};

fn draw_border(win: &pancurses::Window) {
    let (y, x) = win.get_max_yx();
    let (oy, ox) = win.get_cur_yx();
    win.clear();

    win.mvprintw(0, 0, "┏");
    win.mvprintw(y - 1, 0, "┗");
    win.mvprintw(0, x - 1, "┓");
    win.mvprintw(y - 1, x - 1, "┛");

    for i in 1..x - 1 {
        win.mvprintw(0, i, "━");
        win.mvprintw(y - 1, i, "━");
    }
    for i in 1..y - 1 {
        win.mvprintw(i, 0, "┃");
        win.mvprintw(i, x - 1, "┃");
    }
    win.mv(oy, ox);
}

fn main() {
    let window = initscr();

    window.keypad(true);
    noecho();
    mousemask(ALL_MOUSE_EVENTS, std::ptr::null_mut());
    window.getch();
    draw_border(&window);
    window.refresh();

    loop {
        match window.getch() {
            Some(Input::KeyMouse) => {
                if let Ok(e) = getmouse() {
                    window.mvaddch(e.y, e.x, '*');
                }
            }
            Some(Input::KeyResize) => {
                pancurses::resize_term(0, 0);
                draw_border(&window);
            }
            Some(Input::Character(c)) if c == 'q' => break,
            _ => (),
        };
    }
    endwin();
}

cur1.rs

extern crate pancurses;

use pancurses::*;
use std::cmp::{min, max};

fn draw_border(win: &Window, fpoint: (i32, i32), spoint: (i32, i32)) {
    let (_y1, _x1) = fpoint;
    let (_y2, _x2) = spoint;
    let (oy, ox) = win.get_cur_yx();

    let y1 = min(_y1, _y2);
    let y2 = max(_y1, _y2);
    let x1 = min(_x1, _x2);
    let x2 = max(_x1, _x2);

    for i in x1..x2 {
        win.mvprintw(y1, i, "━");
        win.mvprintw(y2, i, "━");
    }
    for i in y1..y2 {
        win.mvprintw(i, x1, "┃");
        win.mvprintw(i, x2, "┃");
    }
    win.mvprintw(y1, x1, "┏");
    win.mvprintw(y2, x1, "┗");
    win.mvprintw(y1, x2, "┓");
    win.mvprintw(y2, x2, "┛");

    win.mv(oy, ox);
}

fn big_border(win: &Window) {
    let (y, x) = win.get_max_yx();
    draw_border(&win, (0,0), (y-1, x-1));
}

fn main() {
    let window = initscr();
    let mut last_yx = (0, 0);

    window.keypad(true);
    noecho();
    mousemask(ALL_MOUSE_EVENTS, std::ptr::null_mut());
    window.getch();
    big_border(&window);
    window.refresh();

    loop {
        match window.getch() {
            Some(Input::KeyMouse) => {
                if let Ok(e) = getmouse() {
                    match e.bstate {
                        BUTTON1_PRESSED => last_yx = (e.y, e.x),
                        BUTTON1_RELEASED => draw_border(&window, last_yx, (e.y, e.x)),
                        _ => ()
                    };
                }
            }
            Some(Input::KeyResize) => {
                resize_term(0, 0);
                window.clear();
                big_border(&window);
            }
            Some(Input::Character(c)) if c == 'q' => break,
            Some(Input::Character(c)) if c == 'l' => {
                window.clear();
                big_border(&window);
            },
            _ => (),
        };
    }
    endwin();
}